Millie,
I am so sorry to read of your truly tragic journey. I can well understand your despair. I feel that way on many a day!
I would certainly be asking your FS about other options.
You may also be interested in looking into NK cell testing. This is NOT done by anyone in melbourne and is actually frowned upon by many Victorian FS's.
I am under the care of Lynn Burmeister at Monash IVF and fortunately have found her very open to any new suggestions. I don't have implantation problems but reccurrent m/c which can have similar causes. There are two Drs in Sydney who are researching an testing for NK cells. Took a flight to Sydney to be tested but was worth it for me as i did come back with a positive result for elevated NK cells. Still can't be sure this is the cause of my losses but i will be on treatment (predisolone) in my next cycle and praying it brings me a live baby.
My FS ,as I said, is quite open to new theories and recently told of a patient who came to her as she wanted to try prednisolone treatment after 13 failed blast transfers. Her previous FS was a "non-believer" in such immunological theories, hence the change. Lynn agreed to the proposed protocol and on the 14th blast transfer, this lady became pg and carried to term on predisolone.
Not saying this is the answer for you but may be worth grilling you current FS on ALL possible treatments whether proven or not. If it was me, I would not be happy to keep doing the same old things if its not working